1. S&W modle 13-1, 4 inch barrel, fixed sights, blue. cal. 357. Purchased in the early 70's. Some bluing worn due to normal use and target shooting. Has smooth action and shoots accurately. 2. S&W modle 19-4, 6 inch barrel, Adjustable sights, blue. cal. 357. Purchased in the mid 70's some bluing wear from holster wear due to qualifing while in the service. Also has smooth action. I want to trade for a Glock 23 gen 4 new in the box. What are they worth?